{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0x18b11338284b58df4480aa64746320b3caecc78fa72ea96fe2d4b38a3d777589",
    "signature": "0x1ab781de951e9091e4e74766e7cb433d56b36ae0fa127fde178d739dc6ddcb204aba31c34d963382bf41382cd4ead5a16e5d9c934f6e564ccf3860090b2606bf1b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}