{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1e4074404e596f209a19ff05a66630516902f4aa53dbb9ed2faeff123af62775",
    "signature": "0xab7197fc133d2b747922274af8a95bf38404fef68a9f2eed5a660f40b6ad2e6e39439e596ad0a1efc5738a54175df40f0c8d4672868a9e2778208d2ce0a4cefe1b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}