{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880649",
    "entityType": "User",
    "nonce": "0xa194e846815faf0ed93b3b7b7507d1f5eebb6f161cd238eefbb7440b201783b2",
    "signature": "0x2f2abc40daa9460c2e8a59ed1426eac4e9a6ec1a77588cc5fd3432947d95b8157dc004b3f6b1ac46930f4a2a6adbdf7c263f67d44cb40bdd5a91d2fe9ca6ac5c1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}