{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42524",
    "entityType": "User",
    "nonce": "0x2c0ad6367f07b141fed98b0009f03ebc623d436e20c4454337cee7d2e5484922",
    "signature": "0x46e40f8803f60341bc35c5ef4d7ef8a2ad7bcef3428ed093b685bab1b081a044663b130faed616299a389ecce99d8e703d55d71d161d9b6023c18b227c542a241b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}