{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85ff23bd4fdcf5f93f60ef713ed759096d04f1d1126b4d077b11c8cab67c18a0",
    "signature": "0xb7be3285e90921f6945c4f07f98e01ba9a86bc02964876a0214368f736beb3d474c5e53b334eabdcd0058c7cb9e77c915dde1a66856ad5ad77fbac2c0338c2721c",
    "signer": "0x1a22371e34aa101eA8b483fE3DCb46178e6a1798",
    "userId": "961339845"
  }
}