{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "418585758",
    "entityType": "User",
    "nonce": "0x6989d01db6bb40586d8dc80a076ffcdfe2f2ccf1ead697b9130e1ec8b5d3658f",
    "signature": "0xa14f04fe7c2d9bc862596b9fa598402eeb0a118b00145b2b81ad974b0fac34de41d0b56560e3f7c5e9f749f40ccbfaf91d0bf981b8fd994b631f20d5abef11a71c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}