{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "531",
    "entityType": "User",
    "nonce": "0x3dec785e94b7ccffb10d880745941f5f684bf1bc5644ff3e54bfced7516e0bd7",
    "signature": "0xbdeed610c021ecf0ddede0262dc6e38e5babc570a65e683108707dc364b7e2de740f0b72128f401b3bd284b6bf68cf33560fb0e3cfe69aac85575cb524480c701c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}