{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0xcda74e25504b3c30cc6f1985ca636455ccc62e1d412b0e48019e65e7d86eeab5",
    "signature": "0x7e76e64f2753a16026cb209c2cc79a4292407375af421698ae79275dda402a43149311e541d8efbec3fd451e83a001c9e5555ff1ca56d09b9eb2fd8f75b1ad961c",
    "signer": "0x4b6B842af75cfAF1fb1Bd7B073C47b1001242a5C",
    "userId": "539898390"
  }
}