{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39985301",
    "entityType": "User",
    "nonce": "0x7c1c28116f0a8ad27e606ba0ec5fd89622cc5de2cef1c0bd77ce38d49092ae63",
    "signature": "0xb705af1ca6998795ebf4cb7ac69b0dd8927c2f9d3a0e35d9e6e1416aebb6314d58b78a64321eee8ad23026282230a2d69d150d2920810296620960d735e32bfc1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}