{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296693095",
    "entityType": "User",
    "nonce": "0x0676d3cda2f2e43a9877ae9e21045333b3cbe0a97520105055496557f6a80cd7",
    "signature": "0x3ed6d7e53b2f16f74ffd15b8cf272556e3aab854b1ed28eeaf96b8022f5b1efc03b556fa513ea3664f0327f8196edb78f23a77d74ffa8670d9d981f1cbc8be611b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}