{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "576630858",
    "entityType": "User",
    "nonce": "0x2be6c57ddbee6e61a871707c3e56a4f289d43a72b0f8d043ff45081385842072",
    "signature": "0x94ce4192dcdc9f2f41442bea39d7cd07a3a6ff384d181b531127ccccb2117cdd16323d1d54e81ad700afd677eeb8234ca20ae4ebf5e32c55f6effb2268077e511b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}