{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "207676588",
    "entityType": "User",
    "nonce": "0xa9eed9385aaf7ab36a9f2c0f61d7c8e2a385f2642a70ca63224d3bfd2d8e5418",
    "signature": "0x74c305549b5831e23cc48675a96558c5e5db0358e743898c1f36a981b91a7e542ad783f52337b8d445e171ae15a6601f799927274207ece805f7c576ae59b3781c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}