{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x31030ef442d59fb883c6e695fed59a949ea644f0c56d252cf101c8462b40aed5",
    "signature": "0xa1110faaf2879f44b3690d577ba23441e1694fc73026bf1e7dc6e36c88f9da71619baf62a70cdc18a66243533ffcb8d5ff3525d868ccc16c17c6e662e0bdc82f1c",
    "signer": "0x96631AE8EE332f8b0A00D0Ff2BCFBEb0092b5dfb",
    "userId": "256491722"
  }
}