{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x1cb35fe72527f9d80e363dd569622355022d6f0af5d06f8458ceb9c739664f13",
    "signature": "0x42df15dfdead7241276b8306cd3daf973bb5a1c392bfaadf1e06a7d7a916b6ef49439b60156be0615155ac209a6799871de63a0aff25de5affd02878447b5b761c",
    "signer": "0xcDd4bA67dFa5A12799fdF828BAe6484f14Fb02Fc",
    "userId": "502753271"
  }
}