{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x772bff20c6dfae0d44dd3aaef4fe199f7119784bca2d46b10850d25ddbdb1337",
    "signature": "0x4bcc28a1105ee91eb794281b5f05f552184aa5546dda9c7f126cd46be476cd932ed4c293a1025df1b66a5e65f4875b8558ccc7b6ba2542cad29db60b684e43db1c",
    "signer": "0x1c1Be0a4f194E6158e5DC3d133B55fC7f8867Adf",
    "userId": "214494078"
  }
}