{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x08608050d12029ab940822b5807b8dde9725d96e473651a986b8b6b34343ac58",
    "signature": "0x1781465c1b0f1166d583b7e1802f9d4788f080d834491a98160363848865bc417084e7a85edf88560be7af9f45591b24a1d109684e7e31b3bfe4dca0a48427aa1b",
    "signer": "0x7cb3978D851aBbaD3373f09F31DF1ceA399d64B3",
    "userId": "860501393"
  }
}