{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xb14da73742e7574dea8cbeab58fcd91c425ff198ff053f81a09fd16028e51d25",
    "signature": "0xe01b2eff28568ff9748626c1eb955b9a4bba5bdc355d310905c64beb81db0627375daeff0a31cab831ded6b98d235e69c99cf6ac2e37c322182cacc853096cf01c",
    "signer": "0x4C4841CcA077D753614283FeC6685b83DBf77Ca4",
    "userId": "232719114"
  }
}