{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215015",
    "entityType": "User",
    "nonce": "0x6d6d50551889795cf173d9f129aa9dd34287987c40c5013ef5e20718f4dfa1c3",
    "signature": "0xad4b5f645f9894318050c43077eb41f7ccf2e7e8134d6169be3571b78e57d5640e923b3553117aee2bce8f076744d2311480413229a20ead9d3b263ab54479481b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}