{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x01fe95111f50e7ef8a0308daa24c26b4bfcc7295bb90c02df6eebef7f90cc8a3",
    "signature": "0xe8cd939d6150b01f7b768bf5d840102e172c59e1151c3317ed4d162a5cb9434e7f69f2891ae6254f2bad298dc9a7f9399b56b2305e1cabf7879829316c0937bd1c",
    "signer": "0xA14B64D3261b0a108e14d3B8f5a9bE4712549c4F",
    "userId": "523587711"
  }
}