{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0xe157ba31969dcd15a3ec3fde4a463efaf6237d5fe62684a3ab3b169e14c29648",
    "signature": "0x00dd803eb042659d6eba53e792e6294916cda05d0fac505a00907f9d2fdb30cc6d3dbb39bb12372b65bd402994d7c493fdb93faa9f75ef4a8e1890aa3d0e2d621c",
    "signer": "0xd2034C6636b4261c48403302a162304227a2BBFd",
    "userId": "39985301"
  }
}