{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328306",
    "entityType": "User",
    "nonce": "0x2fd472cc56ba44c43a846dd36fa2a2b4fc4bddc3e1fa8d1ddbf83888cff3cc11",
    "signature": "0xca4e76cc55c542c0c9f98a8291bac412ed3e419596805654f5fb8cd0b59c167b6b96047c31c63457fa22d605c393b38efa19c8b1ec2c046e0e515fabb05697ff1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}