{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847622374",
    "entityType": "User",
    "nonce": "0x1f6d4779608bd552bb5979b07b7aa5003df4aace162a009064d05f07e5f90a00",
    "signature": "0x44f565826b9a3add1732bce920bf8b7acd8a198199743e7a109d56eef606255946a1f6d5d3d45e37458acd3cf0d0db7942ec4be542017271abddc83a2670ee821c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}