{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3debf8143d5188e7976aed6f8dc79e05b1dfcbf690c56b7d44b127667d32155c",
    "signature": "0x3ee094306ca543671db42562fd95ee5432a808c8a42055df974f1a4dc6bf530378b211ac3767d28b00218f68c3a0bdf98eb7776efff5861e5e84e142dea0bbde1c",
    "signer": "0x0B832af42f443fC158Fec4338b2b5B2Fd996dB2f",
    "userId": "250760011"
  }
}