{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148048",
    "entityType": "User",
    "nonce": "0x1c342920e81d249ac3c6a18e3e64d11ddfca17acc27c3879cc3f41707b57ae15",
    "signature": "0x56c944a8e732446c1e69ca04d75404cbed28bc2727f056868225c653aef651566fe00fbf309ef8a7b5a8d6763bcffd4d3de6b3d8545f2e9f7cafb769e24d06641b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}