{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x44497181d4580d2ce1a51ecdb7d0c7e0df0bfbd9a63cf9bb937eef156336a8ce",
    "signature": "0x8d664398b20694311bb48eace07d0e243ebffc089ec830aef78068c4eebaf0b217f5634007a92fa4c8a01c798a4cb26e1d6f7f0a4a6e20ba9eec5880b459b4cc1c",
    "signer": "0xe2C9bf3Ada7DA8e65705b80311C2954ED141b418",
    "userId": "6433031"
  }
}