{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228781",
    "entityType": "User",
    "nonce": "0x89c81c4bff74a359893b89cb60219792da676063d41d1aaaf98b9cc10db2d828",
    "signature": "0x0053971f932dbb754dba023479ce7e3e0e1ec8c6bfef9ef3ca4331bea04e6956002901367e7b9fec279a9a81b3c45cbb87d775c11fda1f37acde8a2c81787b7d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}