{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "834064217",
    "entityType": "User",
    "nonce": "0x625eb9f016cc9453526de61d18c761b2b3f2b2e20ec7f2fbb8054aa25433174b",
    "signature": "0x1ebde7f3ef104b2295d4c54ea59ea8473d21ddc4f92b583a33c63045f8f80ce3521a46e22f2ba39152e1257499254b6796ffa8ca3b806ec355639c73e9f060411b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}