{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "377203",
    "entityType": "User",
    "nonce": "0xf303bd4d173c714c45012aad7707616e3b354c1cb117c8ef9bbac658ffbcd169",
    "signature": "0xe664f6f3d72765ddccd996eb3561b316acc947c6552ba03c6a2c855402f53aec12f02499b5d1b7376fce7b2db378f125a191be2fcc1f87a78eab262408da84541b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}