{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "292489",
    "entityType": "User",
    "nonce": "0x3918a3e92882987db18cfa80050dd12fecdbb76ba5e9a6a72079d0ab2526e832",
    "signature": "0xa966a4bdf35a361d2c7fb7c90098ccdbe86ef16cb1fd39dac6d8d6e36934e07024e95841a3f115e8a49e0020d6fbebc000e2b3801a6757f012f7643b023286721b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}