{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1905824",
    "entityType": "User",
    "nonce": "0xa2a9a331984a17486128a12f40cdef24ea1822ba85c6d7c206ee31de6ae057f7",
    "signature": "0xb15f952e9fc4781482217f0665dec14d00247d93a77e9eac2eed8903e2e996ba45eec90fb71bd5dfea802d88cee9c5b95c8e0f9a2d0c6df88816448f28a220b01b",
    "signer": "0xe88721130a8800cc60586b20Ffcfda735c9Af2d3",
    "userId": "14676539"
  }
}