{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702343",
    "entityType": "User",
    "nonce": "0xbdfb3af5bfcbc8286c7e81502087b2bb78b27b54253dc214bc8aab7dc9ebf857",
    "signature": "0x3e98726863c344082e90efb558ec7c90519441fdb6d138885b58a3d2cda7fa2b60dbf56b72c84b5ba0490b4ecf2abc20ca170db322edb19616093c79c13de4771c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}