{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22821efdc6fcf2ed39c67eaf108aaf0a9d6897ee945e8a086a3241ae2f8b31ca",
    "signature": "0xf5c54759533db79718655b0e3f6bd40aa66c8411025edefb9f9bcd4aeee04c731755f23c9c76cf0dcf1854a6add22c175c6e0866d1a2c3fe1bbdb6dd49c224431b",
    "signer": "0x8a0fBB1D56011bE4785f7EcD3050eA4fAA83601A",
    "userId": "472318548"
  }
}