{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150637",
    "entityType": "User",
    "nonce": "0xe8d7aff3be474353541f66f371222a34fe487558bd8efa52faf10fcf913257b0",
    "signature": "0x624241eeedf7c3f60bd7e0aabee1889fcb726ceb947e241edbab265c85ef9e2620a7d6070d6b3d3dfa0b6b2ee0df2d23e5c0256e9c65e7066278337b5879cf9b1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}