{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175487972",
    "entityType": "User",
    "nonce": "0x81943417f2ecd426a66a60cd155e047edf9511999ffd3d28f4475d7f9fe9a555",
    "signature": "0xf77a59dd22e164505d754957b83f5ea683a33da52eb3c722e26a831adf509fa632ccb9fc31e70c66e34133be4ccb80ae77d54ed563a555e0613f1d599f9285151c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}