{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5523cd47422e9fa82fbe2a1d7185d42aea6c463ec5810ddb2e90b0f74b1c4fcb",
    "signature": "0xb202e39f2479e798d967a58ef2c7bf56aa6a64b119adf7505f98e9a76d446b2340e0460b4f05d073d36d30939c5519a88be52a03284aea90688cc9cca725550d1b",
    "signer": "0xCe072DB20F5be1b27734687e0293F58fdCa85906",
    "userId": "679000026"
  }
}