{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49987",
    "entityType": "User",
    "nonce": "0x79204155a0f448b226f929c39ef5432eacfc823f8f0b44142f8ad80a7eb7b267",
    "signature": "0x350916671a3b58fb56131855c8ffbf2f4845c15d2e0a7a8292840e1af45a20d5707bea1adcc73e6ab0e6b07165ce720c52a8f184e22a329caec56110ede6c0561c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}