{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x05a7efde57d29bc0f519f64b0dce1f5589efbf977a746ca49932eb2915ec9ada",
    "signature": "0xcf94321ae33bf1a5e5209044a4559ce09aea487be0e84a1b69ba02695965e5d9096f9d8c962e770eb45d79464148cc196b2051efb9514c1bdd680e41de65a6771b",
    "signer": "0xA72E85Ea59c53A884a004b16dFCBa072e50c8aeA",
    "userId": "552828024"
  }
}