{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xf0a586ef59f019df25ff703e3f8a0662d751224ded5eaf8e70713525256c2ce0",
    "signature": "0x51cd63b1bee1ce8e399fcbb9f9021768e9e40ac9b262e9c029b8e4b691f35f692d273c4e4e67d4158ff4dc6e0d4e9dd52fc7d26cdfd0e2e809e46af572e769af1c",
    "signer": "0xaD18d47Fa572f5b5Ad74227EAA7B239318402Ce8",
    "userId": "176359011"
  }
}