{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49313",
    "entityType": "User",
    "nonce": "0x14484cf300421b273319d658d4828d9f571158620dc4a54ab79593ff2386a855",
    "signature": "0xfb4e57650e497876547c7ad738e7c3856046fa2b76fff1bbbf5fa06339758ef816275c14c140a9e8abcf229cb5aff2476f92c023ed60e699e876c7cb81c69a871c",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}