{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64629",
    "entityType": "User",
    "nonce": "0x61e0588d837189456027446ce9cd13e3a29c696f1915569de579b09bf8e52dc1",
    "signature": "0x631e2ac4d22b6d6451552aaa281a97af98bf3ca902e60558a6c875b21d47a96a57badd4ae59f9db7f08535a083cb2084b599584cf8056eec47041333e94833f81b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}