{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318508143",
    "entityType": "User",
    "nonce": "0x1430f233db216773f0b4b1eab0c61e288b24d175ce45008937d5ff568b76e61e",
    "signature": "0xa8b501c4027d1451c0d866d2a9c44025a411c02f410da6ad493316b497d316c356c1878091b1a762f91e592447d4a0562ca2c965c112b5aeebc333c0aaaf6d161b",
    "signer": "0x9f774eD22f96Bb2AdA39D67ec2C2Da09C0f39B5d",
    "userId": "332002703"
  }
}