{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1e67be138573f1731132630849aced539a1e5e802cb6720927395e05e9c6eb8",
    "signature": "0xb62c3ff8c9462589a8c2802d9bebc91d2fa3e72b8d67d288d1f3b57256cf380613765c090f4eb6a14c7213d354c99501cc90225c7dad4d3e0427d2b943eab3001b",
    "signer": "0x72c47f8Ab30bfe2766372E9d9BEAa584438eDC63",
    "userId": "70780751"
  }
}