{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632120348",
    "entityType": "User",
    "nonce": "0xae0af94e3247f84f160181259b4cff4e5f46ff2e76068847b5cf51903d7c5a26",
    "signature": "0xa6963a944fe9b070736212b0cbec81f44444770397f068a45043c819667a89692ae13f80be3b96e0a89c8ce55f30e5e7e982f463954cc9936b8cc40e1c2a1c4d1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}