{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "912339",
    "entityType": "User",
    "nonce": "0x0d2201a890870c59ce317266808e4919d73c4d324ada828c924ba5c70b208149",
    "signature": "0xd78c0a33352d11cc668167f2bb91dec97f8f98955ffee170767cb502ed1bd155120cca9f7e7c1df12ce3d44e92ae57aa8c02d4f6329911c3cc23acf765653f991c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}