{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67671",
    "entityType": "User",
    "nonce": "0x3289b271b51c414674c6c6cd9960fda3368843dfe8bbbdc02557443447343a89",
    "signature": "0x167057f215fb6d168f2cbb36140ea08e2080360b3037f563c5741bba819954134f5a1984c7e6077a6c48ef3dd0df1f8044f84176e980f6e4d779fe7c11d8cac01c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}