{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144066",
    "entityType": "User",
    "nonce": "0xb1204fb738b0c106e72bad052ce1ea7c27bda5c314145afcd10a3ac4993d1ddb",
    "signature": "0xe14fda58d5fb51a3f8c3e8d6afc27cb011a0579a11ce6e1d30e3a64d5a8aabe73fe48588ed266c022fa929278da3a114556bbee915708fb8807e37d4d98f53371b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}