{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x06d53d2c94e8314cfb6a1e056d85577d45af98090a6c8ac66aa516933179c997",
    "signature": "0xd3f801f2d214c768245e85c970c385d273db848e6678ca8ba0adaa9ef9a54698353370b520bc9e150190ebb32be5634f25591dd38f58e1738cff3c57d9e7e6b51b",
    "signer": "0x284254D41a60bDC53C1252637479BDB5e6e0C448",
    "userId": "762334537"
  }
}