{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882575",
    "entityType": "User",
    "nonce": "0x327a3ae1a49d85ed94203d5e28bf89b5b07149a1cb8cc19641de49a8222e3fac",
    "signature": "0xc2fa8c94010a94df98b98bd58672f92fa7d4275314115b70be9e795caad668b656d5693207e0ef560ee8cfb22a121f647d0242e2852254c6364487763376ea6d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}