{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217388",
    "entityType": "User",
    "nonce": "0xf53b2b37a314dc894c20144625049ac4288b9c6546a5fa69afaa68ca5cc95b4d",
    "signature": "0x14d2a182fde5b04e6c0a9a5633848bcaf08f97da6ec4c2f06678cb48c914cf1860cdad3ecb73105694c974580589bb4d9134c39ec79c404247a154cd1b22ad401c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}