{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7923",
    "entityType": "User",
    "nonce": "0xd0137ee42c54b025d5efe66b7b8ca45134a318fe3cb376f16cb6f79281ca8b68",
    "signature": "0xb6b93da61fd6848bdc89c6f7ef6eea0239502c89338c2d7098b34e0ad4c19d20006f74637b95d3178c0104af9abd7aa332cdef26795d24923ed67d04c5a6d6c01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}