{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ee0f7e3e7cf2c7d27be938c626355ab057b4684a02a956e35c93b2577da3d7d",
    "signature": "0x181d68db59bcae6639b4fda4084d2248a74cced75062af714016452c8b99e6f330056f336fa984b7d9fd160628a099d675814ba7533b4c3b39ee924eb2c1c6141c",
    "signer": "0xe443035A663FD9bc2937156808C2f91B6029A96e",
    "userId": "877708088"
  }
}