{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "679244231",
    "entityType": "User",
    "nonce": "0x404ccd9361a1ec79f396655d0028d9d43c3f890975d9cce323c2373c762acf7b",
    "signature": "0x88e09cd7ebed313cdaf7d49db15aefbf9d8d932dfd19dab9d58990e23e94317919a63f108801819a51c173ce259690fce92213b2f277756ef753ef4e025d9c5d1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}