{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x759068be5f0e5d7c65f8e67b7c50e23b49849ec8f88de4c9f85cc427b917cd67",
    "signature": "0x612bb48d20617ff9cf21b81d1e6942f08985b962d67f534bb701bc77da4e881378c98ee336a9073402d944650daeee834413b2f65bb75ee0f394629bae933d731c",
    "signer": "0x8FBba6a789c135b0321E812D6F302c125Bb3Ff5B",
    "userId": "773473058"
  }
}