{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943474958",
    "entityType": "User",
    "nonce": "0x0ea8e3b905bab5d8ea99895815de36285ac4294d535660d2e66e47d00abe691d",
    "signature": "0x6c495a3b4234c255be5237e7be316f97bb345bb914b9ee6d5d0a6bf06e8963b1327efb3a9d5113114bce032863915757dcdd5098ba37059cd8e5cc47e54fbf641b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}