{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305137",
    "entityType": "User",
    "nonce": "0x79ec446e98ba008e228c211917bed54e8ddc4e7fe445fec27cba35479562aadd",
    "signature": "0xd060961db3997a116fcbdff7e35496fe32e775560f4914738641a1e47dfcba941cc79fb16ba642d53607876c4e18916193347b3e55ba322af981c7bcc63444d71c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}