{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0abb891e06e2a36dcc76354b3cfb7e09d7cf2084a40463ebf8aed2599dad83dd",
    "signature": "0x16f5e7ff99a90abb5fccde8c3df914230a1342638ea2ab5e65363c2402dcbe7c2a870e393aff39b273b57d05be10f9bf8603768b35b2ce527ad9f95eab7721a81b",
    "signer": "0x268277a197a3A619749b1997ab92bb2475B0978C",
    "userId": "19571191"
  }
}