{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61273",
    "entityType": "User",
    "nonce": "0x04f320fafd32f69160d71e0a6a44ceb3e538b538744ca4498688da814867fbb9",
    "signature": "0xbc697f3820221f968bfeb0898916b884ade1d848f4abb0cdf96e20efa2683eee0035694f752a44420c89f2c824f272b5de94cf9a966d79786cdb9836b3b861521b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}