{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8dc1601850215e10ff3eab2be36929bcb41e349f815971bf588ac642a67752b3",
    "signature": "0xc85bf037b74d2e239df77999627dee1c009e9ed59db72bad5424a95bc483e25a4d47d3c70f6b58b403d3c8ff32f18996cd956f7421b661d72b45e0c71c05df171c",
    "signer": "0x0cb0863DDfC1bDc7474924E9DFD475fE67AEb990",
    "userId": "4637147"
  }
}