{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0xa3701dc8e39759715f9483af03d039420f61aed7b83ddcbaabc10432ef01eb44",
    "signature": "0x408f3c12098f5ea025abf553dc847f13fbcb54ccdec53e2a3ca3e696f102b6ee7734dfeb98cfa62b64834ac49046376fd36dcbe905fb444ee8547c714fb9f3c21b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}