{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55500",
    "entityType": "User",
    "nonce": "0x7ad4d7198c06cfe6ac8c1b31ef8f3f975235a9415fd3a7cb7cd0b8ea64cdc89d",
    "signature": "0x65f6a13c2c4b3f0db1585889c73936df8d02543f7fbd86f0dcdafa5874c2c96368cf0f4ff07664ad9a0309b660e19639eee8ce68137738ffef2bc614845ed7dc1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}