{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111374",
    "entityType": "User",
    "nonce": "0xde55022177c0210e3947379ff74d26e2f7910539518bdee0b55690c3290f1b85",
    "signature": "0xd5b31ebc371c4efa9cee96b53375032975dd4a830ac5cd07048879cdb8a274fc6b2f6e2b474a07cd853acafe25266c668c405291743ca1bb36a3ef2fa17a0ed71b",
    "signer": "0xf6eca2c1CDE9e52553c4636a5999b354714F0493",
    "userId": "574972460"
  }
}