{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309302",
    "entityType": "User",
    "nonce": "0x16c68b2522bd50eb574483c64766cf8714eed96fa35a106bf53d534739ff0efc",
    "signature": "0xebb57260f0c51b0d3a704975a58a8e2fdd0b58797e8d38d62ea7af6aa11dc3595583fed1e9f377b3d9846cf31e82f9232d9e206a046abf514f1dcedfba97a1521b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}