{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x1699c0d3fe949840ac487363f82888fdd5b7836fadc8f765654c76971f013313",
    "signature": "0x01efde73c056a65eec31a16d5f2559d6705a42da0b68883833977f3f456a28640cad1ec55d4020e7e951d49fbebf0fdba8fd66f4b8d2678c8febb88e1ea513a51c",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}