{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "832487273",
    "entityType": "User",
    "nonce": "0x50ba83a2ca5ef2c1d01f424072e287b245c55faac2fab79b8376b64dfdb9aa37",
    "signature": "0x5342882bf1ca55256223a16aa1d127b0ff37fb34f7bcac7e77fd3964638e2f827022e9d71dec37ad639ad2b04f14c761e62c3b2177155763391bc5cfbf5d5dc51c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}