{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7f630d365503f84e790fbcf72431f2e2d55cedbf90051171c37241668b91d065",
    "signature": "0x5aa43fa5152cfab3fb64e2a4b346054c1e38340512cd004591d62ff4c6d9c20a0b09973ec153d24b7fbeb5c16fa5a6eac138671cc9754628cabcec1413ccd9c01c",
    "signer": "0xDAC0EDfa3a302b40809d62147c5b5b6Db1b7d768",
    "userId": "798794227"
  }
}