{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e45668a4c66b86b858cc14cafd539d8d5f4e2926bd454652bc980b99a77c551",
    "signature": "0xd9c239357a4098cf1c72e9bae22499214f5d928199aec36572cac7ee39b90fac12726e34baf7c1baca3afff306cb506f58ccf1d6afbc5b32dfce676aa2ec9e2a1c",
    "signer": "0xE051895e2d314484565DD51623d3EBDcEB19556C",
    "userId": "868184842"
  }
}