{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58557",
    "entityType": "User",
    "nonce": "0x18c11a0e397b6e5b992c2d070fb0d4ef947ea98336a44c2770404ab4e56cb26d",
    "signature": "0x43ad85f0b873fe3fb63728970f65a8e7a1cd9e4329e19ee85bc0e2fac4b4376b4f75f9f916ee0c1cc744aef3509ef234c9066fc77ab136ff16e8c6761b48fe5b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}