{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7321",
    "entityType": "User",
    "nonce": "0x84d82997affb0b0e19a8a8cda068dc2ab3528f08a439c960cd84dc027611ccd6",
    "signature": "0xaa4897cf0bd5712b6478244c1d826f5b204649e521ebcd671390a7cddbd3ad1810d753d6366cdbfb7868e2a689383855f4bb9dc47129bab80d8af617c44a53c21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}