{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "790897098",
    "entityType": "User",
    "nonce": "0x3a83adabed486a0595c1984bd13df77ab90ea6d4d7900c645ef2f9d63450cf14",
    "signature": "0x9d76efe6d4e90c68f8fd1740072015d360a579c2c60ba0af7f71643b9dfcea4f11836785672fe5032e51faaedcfa8d0f714e7e57e1a86b9dfa86c6e55064b7f91b",
    "signer": "0x3504A096a184AdFd1ed71f0281661a5d34a1f2A6",
    "userId": "720251199"
  }
}