{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2bab88bf36ea4e8c5afc37cdfc4397b85936a8f1d694a513555223a8bb101b5",
    "signature": "0xe3c312fa04ebb1c8b23459cd0ee721f03c5f2eaf084ba8c4de831146fb85370f670cc74c7977a9bffde5ad66c59b54b3f08257c446fe599f94a33cfc882d549f1b",
    "signer": "0xE10Ca21fcE6920dbc2356Aec571547910dc31fD2",
    "userId": "985079650"
  }
}