{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1684",
    "entityType": "User",
    "nonce": "0x762d24e1bd58fc47fe1a0debf9c9a3ac74935795a28472f5e67d84c2010e6fc3",
    "signature": "0x593cc7d7fd740e38ff7128e9d708b3cb7f555cf1b0305bbe4cc488d43c6ab60d7c197692b1e03ba2d69d427e05077b6b718ac6fa6442e5365ad7b97b6613d73f1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}