{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2f9c7f8670357e8f7e46c2c0ae9d97d3b0f90cc535feb34cd424cee408f97fba",
    "signature": "0x985327348f6d19aeb4a0089f49896ba0a6b52a1359de283131a48f603a06f8f0156f774f9a63103fda901d74788ed473b2f45f2d022e7dbb860b2309c66198411b",
    "signer": "0xbb1F6FE414232C59A0617ec94Db46dE09a9C2a97",
    "userId": "476040175"
  }
}